CN215787374U

CN215787374U - Extrusion-molded contact tube

Info

Publication number: CN215787374U
Application number: CN202122299925.9U
Authority: CN
Inventors: 江云超; 彭茂; 曾敏崧
Original assignee: Shanghai Fengshen Industrial Co ltd
Current assignee: Shanghai Fengshen Industrial Co ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-02-11
Anticipated expiration: 2031-09-23

Abstract

The utility model discloses an extrusion-molded contact tube, which comprises a contact tube main body and a high-temperature-resistant and wear-resistant copper alloy wire outlet core, wherein the front end part of the contact tube main body is provided with an accommodating cavity, the wire outlet core is arranged in the accommodating cavity, the inner wall of the front end of the contact tube main body is in clamping fit with the wire outlet core, the center of the contact tube main body is provided with a main body inner hole which is communicated from front to back, the center of the wire outlet core is provided with a wire outlet core inner hole which is communicated from front to back, the main body inner hole is opposite to the wire outlet core inner hole, and the aperture of the main body inner hole is equal to that of the wire outlet core inner hole. In the continuous welding process, the arc discharge can be kept stable, the high-temperature environment can still keep enough hardness and wear resistance, and the safety of the welding process can be guaranteed.

Description

Extrusion-molded contact tube

Technical Field

The utility model relates to the technical field of welding equipment, in particular to an extrusion forming contact tube.

Background

During the welding process, the welding wire is fed through the contact tip, and the feeding process is continuous and uninterrupted. However, during welding, a welding pool is relatively closed, and high temperature generated by electric arc cannot be timely diffused, so that the temperature of the contact tip is rapidly increased, the material is softened, the hardness is reduced, the wear resistance of the contact tip is reduced, elliptical thermal deformation of a welding wire hole of the contact tip is often caused, and unstable electric arc and poor welding are caused.

Chinese utility model patent (grant publication No. CN 210908475U) provides an anti-splash arc welding contact tube, sink the platform structure in head processing of original contact tube, at the embedded ring cover of connecting of establishing of sinking the platform, and the ring cover is made by the alumina ceramic material who possesses the high melting point, high rigidity, its shortcoming is, adopt the electric conductivity of inlaid ceramic part influence contact tube, again because of molten bath high temperature metal splashes and thermal expansion coefficient is inconsistent, cause cracked or inlayed wearing parts of ceramic part to drop the scheduling problem, cause the welding accident easily.

With the development of the automatic welding and robot welding technology, especially in the continuous welding process, a novel contact tip which can keep conductivity and wear resistance at high temperature is needed to meet the requirements of the automatic welding and robot welding technology.

Therefore, there is a need in the art for a contact tip that can maintain stable arc discharge during continuous welding, maintain sufficient hardness and wear resistance in a high temperature environment, and ensure safety during welding.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provide the extrusion-molded contact tube which can keep stable arc discharge in the continuous welding process, can still keep enough hardness and wear resistance in a high-temperature environment and can ensure the safety of the welding process.

The utility model is realized by the following technical scheme: the utility model provides an extrusion contact tube, includes the play silk core of contact tube main part and high temperature resistant wear-resisting copper alloy, the preceding tip of contact tube main part is provided with the holding chamber, go out the silk core set up in the holding intracavity, the front end inner wall of contact tube main part with go out the cooperation of silk core joint, the main part hole that link up around the center of contact tube main part is provided with, go out the silk core hole that the center of silk core link up around being provided with, the main part hole with it is just right each other to go out the silk in-core hole, the aperture of main part hole with the aperture of going out the silk core hole equals.

The wire outlet core is a nano aluminum oxide copper alloy wire outlet core or a beryllium cobalt copper alloy wire outlet core.

The wire outlet core is of a cylindrical structure, the front half part of the wire outlet core is a tapered section with the forward outer diameter gradually reduced, the outer circumferential surface of the tapered section forms an inclined surface relative to the rear half part of the wire outlet core, the inner wall of the front end of the accommodating cavity is formed with a tapered inclined surface corresponding to the inclined surface, the inclined surface is provided with an anti-rotation plane, a cavity is formed between the anti-rotation plane and the conductive nozzle main body, and the inner wall of the front end of the conductive nozzle main body is extruded and filled in the cavity.

The inclined plane is uniformly provided with 1-6 anti-rotation planes which are annularly arranged on the inclined plane.

The contact tube main body is a red copper contact tube main body or a chromium zirconium copper alloy contact tube main body.

The front part of the contact tube main body is a main body tapered section with the forward outer diameter gradually reduced, and the rear end part of the contact tube main body is formed with a threaded connection section.

The utility model has the beneficial effects that: 1. the wire outlet core is made of a wear-resistant and high-temperature-resistant copper alloy material, so that the wear resistance of the contact tube is improved; 2. the problem of poor conductivity of the ceramic conductive structure adopted in the prior art is solved; 3. the concave extrusion structure prevents welding accidents caused by accidental falling of the wire outlet core; 4. the loosening or the rotation of the wire outlet core caused by expansion with heat and contraction with cold in the welding process is prevented.

Drawings

FIG. 1 is a schematic side view of the present invention;

FIG. 2 is a schematic sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic perspective view of the present invention;

FIG. 4 is a schematic side view of the core;

fig. 5 is a schematic perspective view of the filament outlet core.

In the figure: 1-a contact tip body; 101-a cavity; 102-a body bore; 103-a threaded connection section; 104-a body tapered section; 2, producing a silk core; 201-anti-rotation plane; 202-inclined plane; 203-inner holes of the silk cores.

Detailed Description

The present invention is described in detail below with reference to the attached drawings.

As shown in fig. 1-3, an extrusion-molded contact tube comprises a contact tube main body 1 and a wire outlet core 2 made of high-temperature-resistant and wear-resistant copper alloy, wherein a containing cavity is arranged at the front end of the contact tube main body 1, the wire outlet core 2 is arranged in the containing cavity, the inner wall of the front end of the contact tube main body 1 is matched with the wire outlet core 2 in a clamping manner, a main body inner hole 102 which is through from front to back is arranged at the center of the contact tube main body 1, a wire outlet core inner hole 203 which is through from front to back is arranged at the center of the wire outlet core 2, the main body inner hole 102 is opposite to the wire outlet core inner hole 203, and the aperture of the main body inner hole 102 is equal to the aperture of the wire outlet core inner hole 203.

Wherein, the wire outlet core 2 is a nano aluminum oxide copper alloy wire outlet core or a beryllium cobalt copper alloy wire outlet core.

Referring to fig. 1-5, the wire-discharging core 2 is a cylindrical structure, the front half part of the wire-discharging core 2 is a tapered section with a gradually decreasing forward outer diameter, the outer circumferential surface of the tapered section forms an inclined surface 202 relative to the rear half part of the wire-discharging core 2, the front end inner wall of the accommodating cavity is formed with a tapered inclined surface corresponding to the inclined surface 202, referring to fig. 2, the tapered inclined surface forms a negative angle a, the inclined surface 202 is provided with an anti-rotation plane 201, a cavity 101 is formed between the anti-rotation plane 201 and the contact tube body 1, and the front end inner wall of the contact tube body 1 is filled in the cavity 101 in an extruding manner.

When processing, pack into the cylindric holding intracavity of contact tube main part 1 front end with play silk core 2, there is the clearance at this moment between the die cavity 101 of the front end of contact tube main part 1 and play silk core 2, utilize press and anchor clamps to cold-heading the front end of contact tube main part 1 repeatedly, through this kind of extrusion mode, make contact tube main part 1 material warp, in the die cavity 101 is evenly filled to contact tube main part 1 material, make play silk core 2 and contact tube main part 1 closely laminate together, simultaneously contact tube main part 1 evenly cladding is at the surface and the anterior slope of play silk core 2, form the joint cooperation between the front end inner wall of contact tube main part 1 and the play silk core 2, can effectively prevent in welding process, the rotation and the dropout problem of play silk core 2.

The inclined surface 202 is uniformly provided with 1-6 anti-rotation planes 201, and the anti-rotation planes 201 are annularly arranged on the inclined surface 202.

The contact tube main body 1 is a red copper contact tube main body 1 or a chromium zirconium copper alloy contact tube main body 1.

As shown in fig. 1 to 3, the front portion of the contact tip body 1 is a body tapered section 104 with a forward outer diameter gradually decreasing, and the rear end portion of the contact tip body 1 is formed with a threaded connection section 103.

Finally, it should be noted that the above-mentioned contents are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, and that the simple modifications or equivalent substitutions of the technical solutions of the present invention by those of ordinary skill in the art can be made without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides an extrusion contact tube, includes the contact tube main part, its characterized in that: still include the play silk core of high temperature resistant wear-resisting copper alloy, the preceding tip of contact tube main part is provided with the holding chamber, go out the silk core set up in the holding intracavity, the front end inner wall of contact tube main part with go out the cooperation of silk core joint, the main part hole that link up around the center of contact tube main part is provided with, go out the silk core hole that the center of silk core link up around being provided with, the main part hole with it is just right each other to go out the silk in-core hole, the aperture of main part hole with the aperture of going out the silk in-core hole equals.

2. An extruded contact tip as defined in claim 1, wherein: the wire outlet core is a nano aluminum oxide copper alloy wire outlet core or a beryllium cobalt copper alloy wire outlet core.

3. An extruded contact tip as claimed in claim 2, wherein: the wire outlet core is of a cylindrical structure, the front half part of the wire outlet core is a tapered section with the forward outer diameter gradually reduced, the outer circumferential surface of the tapered section forms an inclined surface relative to the rear half part of the wire outlet core, the inner wall of the front end of the accommodating cavity is formed with a tapered inclined surface corresponding to the inclined surface, the inclined surface is provided with an anti-rotation plane, a cavity is formed between the anti-rotation plane and the conductive nozzle main body, and the inner wall of the front end of the conductive nozzle main body is extruded and filled in the cavity.

4. An extruded contact tip as claimed in claim 3, wherein: the inclined plane is uniformly provided with 1-6 anti-rotation planes which are annularly arranged on the inclined plane.

5. An extruded contact tip as defined in claim 1, wherein: the contact tube main body is a red copper contact tube main body or a chromium zirconium copper alloy contact tube main body.

6. An extruded contact tip as defined in claim 5, wherein: the front part of the contact tube main body is a main body tapered section with the forward outer diameter gradually reduced, and the rear end part of the contact tube main body is formed with a threaded connection section.